1 files changed, 56 insertions, 0 deletions
diff --git a/dom/html/test/test_nestediframe.html b/dom/html/test/test_nestediframe.html
new file mode 100644
index 0000000000..bc3747a892
--- /dev/null
+++ b/dom/html/test/test_nestediframe.html
@@ -0,0 +1,56 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for same URLs nested iframes</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+  test_nestediframe body
+<script>
+
+SimpleTest.waitForExplicitFinish();
+
+function reportState(msg) {
+  if (location.href.includes("#")) {
+    parent.postMessage(msg, "*");
+    return;
+  }
+
+  if (msg == "OK 1") {
+    ok(true, "First frame loaded");
+  } else if (msg == "KO 2") {
+    ok(true, "Second frame load failed");
+    SimpleTest.finish();
+  } else {
+    ok(false, "Unknown message: " + msg);
+  }
+}
+
+addEventListener("message", event => {
+  reportState(event.data);
+});
+
+var recursion;
+if (!location.href.includes("#")) {
+  recursion = 1;
+} else {
+  recursion = parseInt(localStorage.recursion) + 1;
+}
+localStorage.recursion = "" + recursion;
+
+var ifr = document.createElement('iframe');
+ifr.src = location.href.split("#")[0] + "#" + recursion;
+
+ifr.onload = function() {
+  reportState("OK " + recursion);
+}
+ifr.onerror = function() {
+  reportState("KO " + recursion);
+}
+
+document.body.appendChild(ifr);
+
+</script>
+</body>
+</html>